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@badger
Hung up, throat slit, let to bleed out. And a big drum underneath to catch the blood. I don't know how needed was that.
Animal blood and blood in general tends to get toxic. With a large animal like a pig you would need to collect the blood and dispose of it properly so it's not just laying on your ground attracting bugs and disease. In the case of oxblood it was gathered and used as a dye for leather. But there's a reason when there's a crime scene hazmat suits are worn to clean up human blood.